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sujayakar.bsky.social
cofounder @ convex.dev. easily nerd sniped and okay with it.
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been working on the @convex.dev object sync engine, and, unsurprisingly, we've been structuring it to use deterministic simulation testing. i'm still blown away every time how *simple* writing systems as deterministic state machines makes testing complicated race conditions

submitted 78 days ago • 1 comment

that's 100% it: we started with the database, built efficient reactivity, and are now working our way out to the clients. excited to have it in all of your hands soon!

submitted 88 days ago • 0 comments

we had a great conversation with @schickling.dev about local-first and how it's incredibly relevant to database folks. it doesn't matter how fast our databases are if this performance doesn't extend to the user experience. www.youtube.com/watch?v=n6Mx...

submitted 88 days ago • 0 comments

we looked at zanzibar yesterday, where a user A has access to an object B if there's a path between them in the access graph. let's walk through how they make this graph reachability problem efficient.

submitted 95 days ago • 1 comment

authorization comes up a lot, and it's easy to get lost in the soup of different ways to express who can access what (ACLs, RBAC, ABAC, ...)

submitted 96 days ago • 1 comment

"convex is a machine for turning my sleep schedule into your app's reliability" - Alfréd Rényi :)

submitted 96 days ago • 1 comment

this is a little unrelated, but I always loved how SQLite on a filesystem can be faster than just using the filesystem. www.sqlite.org/fasterthanfs...

submitted 98 days ago • 0 comments

we've been working on @convex.dev for almost four years now, and it's an incredible feeling to see the first *book* on using convex out there 🤯

submitted 100 days ago • 0 comments

LiveStore is the data layer I wish I had when working on mobile apps: Reactive, fast and fun to use! After many months of close collaboration with the folks at @expo.dev, I'm very excited to take a big step towards launching @livestore.dev.

submitted 100 days ago • 3 comments

reactive UIs, build systems, and materialized views in databases are all flavors of incremental computation. jamie brandon has an excellent analysis of incremental systems across three dimensions: structure, temporal locaity, and consistency.

submitted 103 days ago • 1 comment

amazing work from @convex.dev engineer ian maccartney wiring up automerge to convex!

submitted 105 days ago • 1 comment

range queries (e.g. `age > 20 AND age < 35`) have a cool indexing strategy in apache pinot. each row gets assigned to `log(n)` bitsets based on the binary representation of `age`. range queries then turn into unions and intersections of these sets. richardstartin.github.io/posts/range-...

submitted 107 days ago • 1 comment

we're building a local-first sync engine at convex, and it's finally time to start sharing some details! stack.convex.dev/object-sync-...

submitted 108 days ago • 2 comments

while we're at it: vimeo.com/groups/music...

submitted 109 days ago • 0 comments

these digital marbling fluid simulations are the coolest thing i've seen in a while: blog.amandaghassaei.com/2022/10/25/d...

submitted 109 days ago • 0 comments

if you've ever used google photos and wondered how it syncs millions of photos with buttery smooth scrolling, wonder no longer!

submitted 113 days ago • 0 comments